tree 5ab8ce0c5343b1954804205ad0c3c538ca4f6edb
parent eff631189b135a9579a7f8510f9b1ccadd6fb4f9
author Courtney Goeltzenleuchter <courtneygo@google.com> 1454989685 -0700
committer Jesse Hall <jessehall@google.com> 1455144683 -0800

loader: Implement new layer initialization

We now call down the instance and device chains
as part of the creation process. The loader puts
together "LinkInfo" structures that each layer
uses to reference the next layer down in the stack.
These info structures are attached to the CreateInfo
pNext structure. Also have an info structure that
the loader terminator functions (CreateInstance_Bottom
and CreateDevice_Bottom) that includes loader state
they need.
As part of this the CreateDevice function now lives
on the device chain and it has been split into
Top and Bottom functions. Top builds the LinkInfo
structures and Bottom makes the actual call to the ICD
to create the device object.

Change-Id: I5f5a6d579c34942511cce288ba8fa51f9f89f67f
(cherry picked from commit 9091095245975597a0b2031c3b4847f780c1721e)